Increasing accountability to the country's public education system was one of the chief goals of the act. -no child left behind -educational reform -no student left behind

The correct answer is A. "No child left behind"

Explanation:

No child left behind was an act of 2001 that was aimed at updating the former Educational act on Elementary and Secondary School , this act increased the accountability to the public education system by making school responsable for students outcomes, including test results, academic progress, teacher  competences and reports. This along with changes on funding and emphasis on annual evaluation  to guarantee each school could achieve the standards were key in "No child left behind". Additionally, if the school could not approve those annual evaluations and achieve the standards and later could not improved the results, the amount of money the school received was decreased, in this way schools and teachers were responsible to contribute to the national improvement of education.

8 - (2a + 7) = a + 40     distribute/multiply - into (2a + 7)

8 - 2a - 7 = a + 40

1 - 2a = a + 40       add 2a on both sides

1 = 3a + 40         subtract 40 on both sides

-39 = 3a       divide 3 on both sides

-13 = a

[proof]

8 - (2a + 7) = a + 40

8 - (2(-13) + 7) = -13 + 40

8 - (-26 + 7) = 27

8 - (-19) = 27

8 + 19 = 27

27 = 27